Tank-mold.



PATENTED SEPT. 15, 1903.

W. BRYAN& W. Ai PALFRBYMAN.

TANK Mom).`

PPLIOATION FILED MAY 29, 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

No. 738,769. PATENTED SEPT. l5, 1903. W- BRYAN 6v W.A A;lAI1`1:"REY]M[A1\Tl l TANK MOLD.4 APPLIUATION FILED MAY 29, 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

e e o "v/ e o a o o o e o o g A L o 7V L L ivo. :reared UNITED n.'STATESl resented september 15, 190e;

PgAfrvENT OFFICE.

TAN K-MOLD.

" srnoirrcn'rronformmg part of Letters Patent No. 738,769, datedseptember 15, 1903.

Application 'filed May 29, 1903.

To @ZZ whom it may concern.-

Beit known that we, IVILLIAM BRYAN and WILL. A. PALFREYMAN, citizens ofthe United States, and residents of Angola, in the county `of Steubenand State of Indiana, have inventcompanying drawings, in Which Figure 1is a top plan view of a mold for forming a circular tank; Fig. 2, adetail view of one of the sections of the part for forming the inside ofthe tank; Fig. 3, aview of one of the sections for shaping the outsideof the tank; Fig. 4, a view of a modication of the part shown in Fig. 3;Fig. 5, a detail view of the means for'securing the sections together,

`and Fig. 6 a cross-section of Fig. 1.

Referring to the drawings, in which similar reference charactersindicate corresponding parts throughout the several views, A representsthe mold for forming the inside of the tank, which consists of one ormore parts or sections B, made of sheet-steel preferably and having itstop edge C continuous, while the lower part is slashed to form strips orslats D, that are capable of being bent to form the interior of the tankof the shape de sired, E representing holes near lthe lower edges ofsaid slats to receive rivets or pins to hold the slats in the positionto give the interior of the tank the shape required. If but a small tankis to be molded, the top edge C of one section is bent to the desiredshape and the two ends thereof secured through holes Gin the 'end ofedge C and the end slats D by means of screw-bolts II and nuts I, havinglugs i thereon, that are embedded in the plastic materialfand preventthe nut turning when it is desired to unscrew .the bolt to remove themold after the tank is completed. The mold for the outer wall is alsoformed in sections J, preferably enough longer than Serial No. 159,319.(No model.)

the outside of the tank is to be perpendicular.

If ua larger tank than will be made by a single section is desired, twoor more may be secured together in the same manner as the ends of asingle section, as above described, and the ends of the combinedsections secured together or lapped and secured through holes that maybe drilled at any desired point `intermediate of the ends of either 0rboth sections.

In operating with our mold the outer mold is first placed in positionand a mixture of plastic materialsuch as cement, sand, and water-is putin the inclosure and leveled to form the bottom of the tank. The innerpart A vis then placed in position inside of the outer mold an equaldistance from. it at all points or not, as desired, and the spacebetween the inner and outer parts filled up with the plastic material-After thematerial has hardened the bolts II are removed and the sectionsof the inner and outer molds re= moved. After the nuts I have beenpicked out of the wall of the tank and the holes left thereby filled upwith the cement the tankis completed and, when dried, ready for use.

It will be readily apparent that any shape of tank may be made bybending the inner and outer molds accordingly, also that a higher tankmay be formed by raising the molds and extending the inner mold toconform to the shape of the first-formed part.

If it is desired to construct ahood over aportion or all of the tank,the inner mold `may be reversed on top of the tank and then-proceed asabove described. v

Having thus described our invention, what we claim is- 1. Ina tank-mold,the inner part formed of sheet metal having its top edge continuous andits lower part consisting of a multiplicity of slats, substantially asshown and described.

2. In a tank-mold, the inner part formed of sheet metal having its topedge continuous and its lower part consisting of a multiplicity of slatseach having a series of holes along its loWer edge, substantially asshown and described. A

3. In a tank-mold, the outer part formed of sheet metal having one edgea continuous band and the balance formed of a multiplicity of slats,substantially as shown and described.

4. In a tank-mold, theouter part formed of sheetinetal having one edge acontinuous` band and the balance formed of a multiplicity of slatshaving series of holes near their free edge, substantially as shown anddescribed.

5. In a tank-mold,t`ne inner and outer parts formed of a series ofsections, and bolts and nuts to secure said sections together, each ofsaid nuts having outwardly-extending lugs, substantially as shown anddescribed.

6. In a tank-mold,the inner and outer parts formed of a series ofsections, the individual sections forming the outer part being longerthan the sections forming the inner part, and bolts and nuts to securesaid sections together, each of said nuts having outwardlyextendinglugs, substantially as shown and described.

7. In a tank-mold,the innerand outer parts formed of a series ofsections, each of said sections having a continuous band on one edge andthe balance consisting of slats having a series of holes near their freeedge, and

means to secure the sections together, substantially as shown anddescribed.

8. In a tankmold,the inner and outer parts formed of a series ofsections, each of said sections having a continuous band on one edge andthe balance consisting of slats having a series of holes near their freeedge, and bolts and nuts to secure said sections together, each of saidnuts having outwardly-extending lugs, substantially as shown anddescribed.

9. In a tank-mold,the inner and outer parts formed of a series ofsections, the sections forming said parts having a continuous band onone edge and the remainder consisting of slats having a series of holesnear their free edge, the sections forming the outer part being longerthan the sections forming the inner part, and means to secure thesections tof gether, substantially as shown and described.

l0. In atank1nold,the innerand outerparts formed of a series ofsections, the sections forming said parts having a continuous'band onone edge and the remainder consisting vof slats having a series of holesnear their free edge, the sections forming the outer part being longerthan the sections forming the inner part, and bolts and nuts to securesaid sections together, each of said nuts having outwardly-extendinglugs, substantially as shownand described.

In testimony whereof We hereto affix our signatures in the presence oftwo Witnesses.

WILLIAM BRYAN, WILL. A. PALFREYMAN. Witnesses:

ELLIS WOOD, SAMUEL E. SHEFFER.

